Cervelo 2026 S5 - Dura-Ace

The Cervélo S5 is a sport-wide benchmark for speed and aerodynamic
efficiency—with the race results to back it up. From Wout van Aert
winning the Green Jersey by the biggest margin of victory in modern
history, to Simon Yates riding himself into the maglia rosa, S5’s iconic
V-stem and bayonet fork are a fixture at the front of the professional
peloton. The new S5 builds on that legacy of speed by getting even
faster, evolving the front end, and going on a bit of a diet, making it
an even more potent partner for the fastest riders in the world.

AERO AERO AERO
The new S5 is 6.3 Watts faster than its predecessor. These gains are realized
primarily at the front end of the bike, but the integration of the asymmetric
profiles of the seat tube and rear wheel are a significant source as well. Cervélo
has long been the aerodynamic leader in the peloton, and we’re confident
that the new S5 is at least 5 Watts faster than the bikes of our competitors.

ONE-PIECE HANDLEBAR/STEM
HB19 uses our “Plus-Four” concept, meaning the dimension at the hoods
is 4cm narrower than in the drops (e.g. 38cm/42cm). This approach helps
riders maintain a more aero body position while their hands are on the
hoods, and provides stability in the drops for descending and sprinting. All
bar sizes are UCI-legal, even in light of the most recent regulations change.

NOT JUST FASTER. LIGHTER, TOO.
Despite an increase in surface area, the new S5 is 124 grams lighter than
its predecessor. While the increase in fork and head tube depth added
weight, we optimized the layup and hardware to make the system lighter.

RESERVE 57|64 DESIGNED FOR S5
The new Reserve 57|64 wheelset was co-developed by Reserve and
Cervélo, and designed for use in the new S5. The rear wheel’s asymmetry
matches the seat tube, ensuring air flows smoothly over both. The new
wheelset is 3 Watts faster than the 52|63 wheels, and weighs the same.